CN2677676Y

CN2677676Y - Self-cooling axial-flow centrifugal submersible pump

Info

Publication number: CN2677676Y
Application number: CN 200420030310
Authority: CN
Inventors: 张旭清
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-09
Filing date: 2004-02-09
Publication date: 2005-02-09
Anticipated expiration: 2014-02-09

Abstract

The utility model discloses a self-cooling axial-flow centrifugal submersible pump which can make use of inlet water current during operation to cool a motor and reduce the heat dissipation produced by the motor during operation. The pump not only has the characteristics of an axial-flow pump, but also has the advantages of a centrifugal pump, and comprises a water inlet pipe, a pump body and a motor. The motor is installed in the water inlet pipe, and one end of the motor is installed on the fixed plate by a rack, and the other end is provided with a rack on which a water grate rack is arranged. One end of the water inlet pipe is installed on the fixed plate, and the end which is provided with a water grate is sheathed on the rack and supported by the water grate rack. Blade wheels are installed on an axle of the motor, and a pump shell with a convey handle is installed on the fixed plate. Due to the design that water enters from the front end, and therefore, the utility model can work normally even in the case of a sludgy water-bed.

Description

Self cooling axial flow centrifugal submersible pumps

Technical field:

The utility model relates to the universal machine technical field, and exactly it is a kind of self cooling axial flow Centrifugal water pump.

Background technique:

Submersible pump operating environment simple to operate because of it, that adapt to is extensive, and is favored by people.Axial flow or centrifugal submersible pumps are to be made of motor and water pump two-part substantially, motor places the pump housing foremost, motor shaft links through pump case and impeller, between motor shaft and pump case, form water intake, water enters from water intake during work, discharge from water outlet under the effect of impeller, motor is natural heat dissipation in water.The modular design that disclosed several submersible pumps such as Chinese patent 02220830.5,01271640.5,02271570.3 are exactly above-mentioned submersible pump.Though the submersible pump of this structure is simple in structure, properly settled the sealing problem of motor; Adopt multistage pumping up water when designing, improved lift greatly, applicable to heavy duty service.When the operation of clear water environment, the heat radiation of this submersible pump does not generally have too big problem, but often under water condition all be very complicated, when particularly water-bed mud was thicker, motor very easily fell into in the middle of the mud, caused motor to dispel the heat and burnt.Therefore, the heat dissipation problem of motor has also limited the increasing of submersible pump design power, thereby has influenced the raising of submersible pump working efficiency.In addition, the submersible pump that uses at present also ubiquity that water inlet is young, shutter grate easily stops up, carry shortcoming such as inconvenience.

Summary of the invention:

The utility model is that its purpose just provides a kind of characteristics that both had axial-flow pump, has the self cooling axial flow centrifugal submersible pumps of the advantage of centrifugal pump again to the improvement of above-mentioned submersible pump design.

The purpose of this utility model is achieved in that self cooling axial flow centrifugal submersible pumps comprises intake pipe, the pump housing and motor.Impeller (9) is installed on the motor shaft (10) with nut (8), pump case (6) is installed on the fixed plate (5), (7) be water outlet, it is characterized in that: motor (2) is installed in the intake pipe (3), the inlet end of intake pipe (3) is equipped with shutter grate (1), one end of motor (2) is installed on the fixed plate (5) with support (11), the other end of motor (2) is provided with support (12), support (12) is provided with drain cover bracket (13), one end of intake pipe (3) is installed on the fixed plate (5), an end that has shutter grate is sleeved on the support (12), and supports with drain cover bracket (13), is provided with lifting handle (4) on pump case (6).

Compared with prior art, the utility model has the advantages that the water inlet current that produce when utilizing work cool off motor, good cooling results, the heat loss that has produced when not only having reduced machine operation also can strengthen the design power of submersible pump.Particularly because adopted the design of front end water inlet, so, even have at the bottom under the situation of mud, but also proper functioning of the utility model.It had both had the characteristics of axial-flow pump, had the advantage of centrifugal pump again, played the effect of two pumps unification.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a left view of the present utility model.

Embodiment:

Embodiment 1:

Below in conjunction with accompanying drawing, the utility model is further described.After by Fig. 1 the utility model assembling being finished, conduit pipe is installed on the water outlet 7, utilizes lifting handle 5, or tie up on lifting handle 5, submersible pump is put into water with rope.Energising back water pump is started working, and water is discharged from from water outlet 7 under the effect of impeller 9, forms negative pressure in the intake pipe 3, because the effect of negative pressure, water constantly enters intake pipe 3 from shutter grate 1, constantly discharges from water outlet 7 again.The heat that the current that produce during pump working constantly produce motor is taken away, thereby, fundamentally solved the heat dissipation problem of motor for submerged pump.

Embodiment 2:

Impeller 9 is replaced with centrifugal blade, and changes the water outlet direction of pump case 6, the utility model promptly can be used as centrifugal pump and uses.

Claims

1, self cooling axial flow centrifugal submersible pumps, comprise intake pipe, the pump housing and motor, impeller (9) is installed on the motor shaft (10) with nut (8), pump case (6) is installed on the fixed plate (5), it is characterized in that: motor (2) is installed in the intake pipe (3), and the inlet end of intake pipe (3) is equipped with shutter grate (1).

2, a kind of self cooling axial flow centrifugal submersible pumps according to claim 1, it is characterized in that: an end of motor (2) is installed on the fixed plate (5) with support (11), the other end of motor (2) is provided with support (12), support (12) is provided with drain cover bracket (13), one end of intake pipe (3) is installed on the fixed plate (5), an end that has shutter grate is sleeved on the support (12), and supports with drain cover bracket (13)

3, a kind of self cooling axial flow centrifugal submersible pumps according to claim 1 is characterized in that: change the water outlet direction of pump case (6), impeller (9) also can adopt centrifugal blade.

4, a kind of self cooling axial flow centrifugal submersible pumps according to claim 1 is characterized in that: be provided with lifting handle (4) on pump case (6).